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The main trunk sewer will be excavated using two tunnel-boring machines designed specifically for the geological features encountered in Doha.

The main trunk sewer will be excavated using two tunnel-boring machines designed specifically for the geological features encountered in Doha.

Doha sewage job set for 2019 completion

January 2017

Qatar’s Public Works Authority (Ashghal) said it has started excavation works for the main trunk sewer, a key part of Doha South Sewage Infrastructure Project.

The project has been designed to serve areas in the south of Doha and the expected population growth over a hundred years.

A joint venture between Bouygues Travaux Publics and UCC is the project contractor, while CH2M is the project management consultant.

Work is progressing well on the Doha South Sewage Infrastructure Project which will be completed by the first quarter of 2019, said Ashghal.

The scope of work includes construction of a 16-km-long main trunk sewer, divided into three segments, Eastern, Northern and Western. This is in addition to the design and construction of 11 shafts that will be used to excavate the main tunnel.

The main trunk sewer will convey the sewage flows through pumping stations to the existing Doha South treatment works, it stated.




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